Machine for honing conical surfaces



Jan. 18, 1938. H. A. ORTEGREN NE FOR HONING C ONICAL SURFACES MACHI Filed Nov. 29, 1935 3 Sheets-Sheet 1 i I I v l l I v:

INVENTOR.

ATTORNEYS Jan. 18, v1938. H. A. ORTEGREN MACHINE FOR HONING CONICAL SURFACES Filed Nov. 29, 1935 3 SheeLs-Sheet 2 INVENTOK 7/5 7767 fl0f @T ATTORNEYS Jan. 18, 1938. H. A. ORTEGREN MACHINE FOR HONING CONICAL' SURFACES Filed Nov. '29, 1955 s Sheets-Sheet 3 ATTORNEYS Patented Jan. 18, 1938 MACHINE FOR HONING CONIOAL SURFACES Herman A. Ortegren, Detroit, Mich, asslgnor to Bower Roller Bearing Company, Detroit, Mich., a corporation of Michigan Application November 29, 1935, Serial No. 52,212

9 Claims.

This invention relates to a machine for honing the conical surfaces of tapered roller bearing members, and more particularly to a modification of the construction shown in application Serial No. 52,976, filed December 5, 1935, for Machine for honing conical surfaces.

An object of the present invention is to so mount the several-hones that each will be held in yielding engagement with the conical surface of the work during the reciprocation of said hones in the direction of the length of their lines of contact with said conical surface.

A further object is to provide certain other new and useful features in the construction, arrangement and combination of parts, all as hereinafter more fully set forth, reference being had to the drawings in which,

Figure 1 is a central vertical section with parts in side elevation, of a machine illustrative of an embodiment of the present invention;

Fig. 2 is a sectional detail of a portion of the machine and showing hone carrying and operating means in side elevation;

Fig. 3 is a horizontal section substantially upon the line 3-3 of Fig. 2;

Fig. .4 is a horizontal section substantially upon the line 4-5 of Fig. 2;

Fig. 5 is a sectional detail illustrative of hone carrying crank arms and their relation to the 'work;

Fig. 6' is a section substantially upon the line 6-6 of Fig. 2;

Fig. 7 is a section substantially upon the line 1-- of Fig. 2;

Fig. 8 is a section substantially upon the line 88 of Fig. 2 and drawn to a reduced scale;

Fig. 9 is a sectional detail similar to Fig. 2 and showing a modified construction;

Fig. 10 is a horizontal section substantially upon the line Ill-Ill of Fig. 9; r

Fig. 11 is a section on the line ll-|| of Fig. .9, and

Fig. 12 is a sectional detail substantially upon the line l2|2 of Fig. 10.

The present invention relates particularly to the mounting and operation ofthe honing instrumentalities as illustrated in Figs. 2 to 8 inclusive and as shown in modified form' in Figs. 9 to 12 inclusive, this arrangement of hones being shown in Fig. l as embodied in a complete operative machine, the detailed construction of which forms no part of the present invention other than as parts of operative combinations including said invention.

The detailed construction embodying the present invention, is in the form of a head or unit indicated as a whole by the numeral I, and to operate this hone carrying head, it is mounted upon the lower end of a tubular spindle 2 which in turn is mounted within suitable antifriction bearings 3 interposed between said spindle and an adjusting sleeve or tubular member 4 which is mounted for non-rotative longitudinal adjustment within a vertical bore of a laterally projecting bracket 5 on an upright supporting pedestal 6 of the machine.

To raise or lower the adjusting sleeve 4 and head I, said sleeve is provided with a rack bar 1 engaged within a suitable way in the bracket 5,

i said rack bar being engaged by a pinion 8 on a transverse shaft mounted in hearings on said bracket and provided with an operating handle 9 on one end thereof by means of which the shaft may be manually rotated to move said sleeve 4 up or down and thus move said head toward or from the work l0 which, as shown, is an annular member of a tapered roller bearing having an internal conical surface ll.

As shown, further adjustment of said sleeve 4 is provided for the purpose of adjusting said spindle 2 and head I relative to said sleeve, this adjustment including a nut' I2 screwed into the upper end of said sleeve and adjusted into or out of the sleeve by providing said nut with a gear I 3 engaged by an elongated pinion M on the vertical shaft I 5, said shaft being turned through the medium of suitable-gearing operated by a hand wheel "5.

The hollow spindle 2 is rotated by means of a gear "applied to its upper end and mounted within a suitable gear box on the upper end of the pedestal 6, said gear being splined to the spindle to permit said spindle to reciprocate therethrough, and said gear'is driven, as by a pulley l8 from which motion is transmitted in any suitable manner.

'Means is provided on the base of the machine for detachably and adjustably holding the work [0 so that upon the lowering of said head I, the several hones l9 carried by said head will be brought into contact with the conical surface I l of the work, and the work will be automatically centered thereby axially with the axis of rotation of said head, said work holding means comprising spaced apart tables 20-2l connected by an intermediate spline block 22 having a spline on its lower side to engage a groove in the lower table and a spline on its upper side extending transversely. in a right angular direction to engage a groove in the lower side of the upper table 2i, thus permitting limited lateral movement of the table 2l-iin right-angular directions so "that when the hones come into contact with the conical surface of the work which is secured in place upon the upper table by the clamping means in-' 1 otherwise constructed to. rotate and adjust the head I as a unit, the described construction being merely illustrative of one embodiment in an operative machine, of the head orcarrier for the several hones, and while the work as illustrated is an annular or cup member of a tapered roller hearing, it is obvious that other conical surfaces may be honed, such as the cone member of such.

abearing, by changing the angle of inclination of these hones which angle in all cases must correspond exactly to the conical angle of the suriace being honed.

screw threaded bore extending inward from .the

lower end of the pin upon whichthe hone is mounted with the head of the screw engaging the end of said hone, and each of these pins 24 is formed integral with one end of a crank 26 and extended at right angles thereto, the opposite end of each crank being formed with a pivot pin 21 extending from said crank in a direction opposite to that of the pin 24 and these pins 21 are mounted for rotation within'bores formed in lateral bosses 28 forming partof a head or spider 29 which is formed with an integral upwardly extending axial hub 30, which hub is secured to the lower end of a longitudinally reciprocable shaft 3| extending upwardly within the tubular spindle 2. This hone carrying spider 29 is connected to the lower end of spindle 2 to rotate therewith and to reciprocate with said shaft 3i by providing a circular out'-' standing flange 32 on the lower end of said spindle, and rigidly secured to this flange, by screw bolts 33, is a flanged sleeve or socket member 34 having a bore to receive the axial hub 36, said hub being provided with a spline 35 to engage a groove or way in the bore of said flanged socket member 34 and cause the entire honecarrying head I, to rotate with the spindle 2 while permitting simultaneous reciprocation of said hone carrying spider 29 with said shaft 3| To reciprocate the shaft 3| simultaneously with the rotation of the spindle 2- and 'with a speed of travel which is exactly the same throughout the length of such reciprocation, the adjusting nut l2 '60 36, the adjacent edges of'said ribs 36 and 36 being formed with corresponding undulations to form .between them an undulating slot within which travel suitable rolls 39 on the ends of a cross pin "40 which is rigidly secured in a transverse opening inthe shaft 3| near its upper end, saidpin extending through longitudinal slots in said, tubular spindle 2. Therefore rotation of said-spindle imparts by'mcans of said pin 46, rotation to said shaft 3| and travel of said rolls 39 in said slot formed between said ribs 36-39,- the undulations of which impart reciprocation to said shaft 3| and. to said hone carrying spider 29 to reciprocate said hones transversely of the conical surface ll of the work as they are rotated about a common axis in contact with said surface.

In Figs. 1 to 6 the bosses 28 of the spider 29 are formed at an angle to the vertical axis of rotation of said spider, and the bores of these bosses in i which the pins 21 rotate are each likewise formed at a like angle to said axis, the pins 24 upon which the hones are mounted being also extended at the same angle, and as this angle is exactly the same as the angle of the conical surface I l of the work to its'axis, the several hones I9 will engage said surface transversely thereof throughout the width of that surface, thus providing an even contact to form said surface with the exact desired conical angle, and to maintain that contactthroughout'the length of reciprocation of said hones, each hone is mounted for swinging movement, upon a crank arm 26 to swing outwardly into contact with said conical surface H with this line of contact extending exactly at right angles to the length of said surface across the width thereof, and to so swing each crank and maintain a yielding contact of each bone with said surface, the upper end of each pin 21 is provided with a laterally extending arm or lug 4! as shown in Fig. 6, within a suitable chamber or recess 42, the upper end of which is closed by a plate 43, and positioned within a lateral bore opening into each of said chambers, is a spring plunger 44 to engage said lug 4| and rotate the pin 21 to swing each crank arm 26 outwardly and said lug toward an adjustable stop screw '45 which is provided to limit theoutward swing of each crank and hone carried thereby, so that, with the hone carrying unit or head I in raised position above the work, the hones will be held in position to enter the annular work member.

'ject, these pins being'longitudinally reciprocable in vertical bores in the head and being so reciprocated by securing a plate 49 to .the lower end of the shaft 3| within the chamber 4'! and rotatively securing the upper ends of the pins 48 to said plate in any suitable manner as by lag screws 56. Formed integral with the lower end of each of said pins 49 is a crank arm 5| to swing in a horizontal plane below the lower end of the head 46 and secured to the free end of each crank arm is a pin 52 corresponding to the pin 24' and upon which pins the hones I9 are mounted, said pins each being formed with an integral rectangular head 53 to fit closely into a notch 54 in the free end of each arm 5|, and to secure said heads i irmly seated, in said notches, each head is formed with a stud 55 to be received in a longitudinal bore in each arm 5| and secured therein in any suitable manner as by a securing screw'56 tapped through. said arm and into the end of saidstud. The slot 54in the end of each arm 5| extends at an angle to the longitudinal axis of the crank pin 48 ofsaid arm, and therefore the longitudinal axis of each pin 52 is inclined to the axis of rotation of the head 46, which angle of "inclination is exactly the same as the angle of inclination of the conical surface of the work. Each hone'will therefore contact said surface of the work throughout the width of 7 surface of the work coincident with the axis of said surface when the arm upon which it is carried is swung about the axis of its pin 48 by means of a spring plunger 51 in engagement with a lateral lug 58 on each arm, and to limit the outward swing of each arm, a stop lug 59 is provided on thelower end of the head adjacent each arm.

When the head 46 is lowered to bring the several hones carried thereby into engagement with the conical surface of the work, the crank arms will be swung inwardly against the action of the spring plungers and these plungers will hold said hones in yielding contact with the work during reciprocation of said hones, each hone being rigidly held at the proper angle to form the conical surface at the exact desired angle.

Obviously other changes maybe made in the detailed construction and arrangement of parts without departing from the spirit of the present invention and such changes are contemplated.

What 'I claim is:-- 1. A machine for the purpose described having a head, means for rotating said head, and means for holding work with the axis of a conical rotation of said head; said machine including a plurality of hones positioned about the axis of rotation of said head in a longitudinal inclined position relativeto said axis, and crank 'members pivotally mounted at one end for turning movement on said head relative thereto and upon the free ends of which crank members said hones are mounted with their work engaging surfaces parallel with said conical surface of the work.

2. A machine for the purpose described having a head, means for rotating said head, and means for holding work with the axis of a conical surface of the work coincident with the axis of rotation of said head; said machine including a plurality of hones, and members each pivotally attached at one end to said head and upon the opposite free end of which a hone is mounted, said hones being carried by said members in an inclined position corresponding to the inclination of said conical surface of the work to said axis, said members being adapted to swing upon their pivotal connections to said head to bring said hones into contact with said-conical surface transversely of the width thereof.

3. A machine as characterized in claim 2 and including yieldable means for swinging said members and holding said bones in contact with I said conical surface of the work.

4. In a machine of the character described, in combination with a rotatable spindle, and means for holding work with the-axis of a conical surface of the work coincident with the axis of rotation of said spindle, of a head carried by and rotatable with said spindle, crank members pivotally mounted in said head for swinging movement toward and from said axis of rotation, a hone carried by each of said crank members to engage said conical surface of the work in line contacts therewith extending transversely of said conical surface, and means for imparting a reciprocatory movement to said hones in the direction of the length of their line contacts with said conical surface of the work.

5. In a machine for the purpose described, the

combination of a rotatable spindle, a head rctatable with said spindle, a pluralityof hones to engage a conical surface of the work transversely thereof, crank members pivotally mounted at one end in said head and carrying said hones at their opposite ends and yieldable means carried by said head for swinging said crank members to bring said hones into contact with said conical surface of the Work and yieldingly hold the same in contact therewith.

6. In a machine of the character described, the combination of a rotatable spindle, a head carried by the lower end of said spindle and rotatable therewith, and reciprocable longitudinally thereof, a plurality of crank members pivotally carried by said head, hones carried by the free ends of said crank members and held thereby in an inclined position corresponding in the inclination to the conical angle of a conical surface of work to be engaged thereby, said hones extending transversely of said conical surface to engage the same in a line contact extending transversely of said surface, and yieldable means for swinging said crank members to bring said hones into contact with said conical surface.

7. In a machine for the purpose described having a hollow rotatable spindle, and means for holding work with a conical surface of the work in axial alinement with the axis of rotation of said spindle, a head mounted upon said spindle for rotation therewith and for reciprocation relative thereto longitudinally thereof, arms each pivotally attached at one end to said head to swing about an upwardly extending .axis in a combination of a tubular rotative spindle, a carrying member connected to said head to rotate therewith and to reciprocate relative thereto longitudinally of said spindle, said head being formed with a pluralityof bores inclined relative to the axis of rotation of the spindle, a plurality of crank members having pins at one end to engage said bores and rotate therein, hones carried by the opposite ends of said crank members in an inclined position relative to the axis of rotation of the spindle to be swung into contactwith the conical surface of work by the swinging movement of said crank members and to engage said conical surface in a line contact extending transversely of" said surface. and means for swinging said crank members.

9. Means for smoothing the conical surface of work including a rotatable head, a hone carrying member of crank form having a pivot member at one end for pivotally attaching said mem her to said head and a hone attaching member at'its free end, said members projecting laterally in opposite directions, said hone attaching member extending at an angle to said carrying member to hold a hone or smoothing instrumentality with its work contacting surface at an angle to the axis of rotation of said head to engage said conical surface of the work along a line extending in the direction of the length of the axis of said conical surface and across said surface.

HERMAN A. ORTEGREN. 

